But every human being has a twofold nature. He has a _spiritual_ body as well as a _natural_ body. Paul says: "If there is a natural body, there is also a spiritual body." Man's natural or physical organization consists of _flesh and blood_. Paul calls this the "_outer man_." This is man's animal or sensuous nature. Man's spiritual body consists of _will_ and _understanding_. Paul calls this the _inner man_; because it is the interior, "hidden man of the heart." This is capable of becoming the higher, nobler, better part of man, because it is the "house" of his affections and thoughts, of his loves and enjoyments. There is a wonderful difference between the two natures; and yet the one corresponds to the other so perfectly that in all of man's experiences, in all that pertains to his life in this world, the two natures make _one man_. Whilst this is so, we must not forget that our natural bodies are _mortal_; they will soon die. But our spiritual bodies are _immortal_; they will never die. This is quite as true of the evil as of the good. The spiritual bodies or souls of men will live on, after the death of their natural bodies, through the countless ages of eternity,--the good, in the enjoyments of ineffable bliss; the evil, in the sufferings of deepest woe. And is this true? Can it be that one or the other of these experiences is sure to be realized by every one present here to-day? Can it be so? Or am I here just beating the air to make you and me hear myself talk? I solemnly protest that I am not here for that purpose. I have a higher aim, a nobler end. But let me point you to my authority for what I say, and show you the Rock on which my faith is built. All the authority which any man dare claim on this subject is found in God's revealed Word. I will here quote a few passages: "When the Son of man shall come in his glory, and all the holy angels with him, then shall he sit on the throne of his glory: and before him shall be gathered all the nations; and he shall separate them one from another, as a shepherd divideth his sheep from the goats.... Then shall the King say unto them on his right hand, Come ye blessed of my Father, inherit the kingdom prepared for you.... Then shall he say also unto them on the left hand, Depart from me, ye cursed, into everlasting fire.... And these shall go away into everlasting punishment; but the righteous into life eternal." These words are the words of our Lord Jesus Christ; he here portrays, in one grand view, the good state of the righteous in the next world and the evil state of the unrighteous. In the very inmost of my heart I believe what our Lord here says, and out of the abundance of my heart my mouth now speaks. I also sincerely believe, friends, that every one here to-day can most surely determine for himself, even while living in this world, whether he will be happy in heaven forever, or miserable in an everlasting hell. You may justly ask, "How can this be determined?"